CN211661582U - Clamping device for processing irregular workpiece - Google Patents

Abstract

The utility model relates to a clamping device for processing irregular workpieces, comprising a processing table, a movable plate and a clamping claw. A transmission cavity is arranged in the processing table, and two sets of transmission mechanisms are arranged in the transmission cavity. There are two in total. The lower parts of the two movable plates pass through the top wall of the transmission cavity and are respectively connected with the two sets of transmission mechanisms. The opposite surfaces of the upper parts of the two movable plates are provided with a clamping claw, and the clamping claw includes several movable plates. Adjustable clamping plate. When the utility model is in use, since the two gears are meshed with the racks respectively, the positions of the two movable plates can be adjusted arbitrarily, and the processing position will not be restricted by the fixture, and the telescopic cylinder can be activated to move the gears, which is suitable for workpieces with irregular shapes. When clamping, place the workpiece between the two clamping jaws, and then tighten each clamping bolt correspondingly to clamp the workpiece to ensure machining accuracy.

Description

A clamping device for machining irregular workpieces

technical field

The utility model relates to the technical field of machining, in particular to a clamping device for machining irregular workpieces.

Background technique

Machining refers to the process of changing the dimensions or properties of a workpiece through a mechanical device. According to the difference in processing methods, it can be divided into cutting processing and pressure processing. When machining, it is often necessary to use a fixture to fix the workpiece before processing. Some workpieces to be processed are irregular in shape. If a fixture with a regular shape is used to clamp it during processing, the clamping is unstable, which is not conducive to processing and is prone to occur. In addition, some existing fixtures mostly include a fixed part and a moving part. When in use, the fixed part cannot be moved, which limits the processing position and needs to be improved.

SUMMARY OF THE INVENTION

The utility model aims to solve the deficiencies of the prior art, and provides a clamping device for machining irregular workpieces.

The utility model adopts the following technical solutions for realizing the above-mentioned purpose:

A clamping device for processing irregular workpieces, comprising a processing table, a movable plate and a clamping claw, a transmission cavity is arranged in the processing table, two sets of transmission mechanisms are arranged in the transmission cavity, and there are two movable plates in total, The lower parts of the two movable plates pass through the top wall of the transmission cavity and are respectively connected with two sets of transmission mechanisms. The opposite surfaces of the upper parts of the two movable plates are provided with a clamping claw, and the clamping claw includes a number of adjustable clamping jaws. plate.

Both sets of transmission mechanisms include a gear, a rack is arranged in the transmission cavity, and the two gears are meshed with the rack. There is a telescopic cylinder connected to the central shaft. There is a fixed plate outside the side wall of the processing table. The side of the fixed plate is "L" shaped. The top of the fixed plate is fixed on the side wall of the processing table. The telescopic cylinder is fixed on the fixed plate facing the processing table. On the side wall of the telescopic cylinder, the head end of the telescopic cylinder movably penetrates into the transmission cavity and is connected with the movable plate. A limit rod is fixed in the transmission cavity, and both ends of the limit rod are fixed on the inner wall of the transmission cavity. The limit rod The activity goes through two activity boards.

The clamping claw includes at least five adjustable clamping plates, two adjacent adjustable clamping plates are hinged, and a hinge block is hinged on the opposite surface of the adjustable clamping plate and the movable plate, and the movable plate is hinged. Several clamping bolts are screwed on the plate, the screw ends of the two outermost clamping bolts are rotated and arranged on the hinge blocks of the outermost two clamping plates, and the screw ends of the other clamping bolts are rotated alternately. On the hinge block of the inner clamping plate, a buffer spring is connected between the clamping plate and the movable plate, and the ends of the screw rods of the clamping bolts are inclined toward the middle of the clamping claw.

The beneficial effects of the utility model are: when the utility model is in use, since the two gears are meshed with the racks respectively, the positions of the two movable plates can be adjusted arbitrarily, the processing position will not be restricted by the fixture, and the telescopic cylinder can be moved when activated. Gear, when clamping irregularly shaped workpieces, place the workpiece between two clamping jaws, and then correspondingly tighten each clamping bolt to clamp the workpiece to ensure machining accuracy.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of the clamping jaw of the utility model;

In the figure: 1- processing table; 2- rack; 3- gear; 4- telescopic cylinder; 5- limit rod; 6- movable plate; 7- clamping bolt; 8- clamping claw; 9- buffer spring; 10-transmission cavity; 11-fixed plate;

The following will be described in detail with reference to the accompanying drawings in conjunction with the embodiments of the present utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment, the utility model is further described:

As shown in FIG. 1 to FIG. 2 , a clamping device for irregular workpiece processing includes a processing table 1 , a movable plate 6 and a clamping jaw 8 . The processing table 1 is provided with a transmission cavity 10 . There are two sets of transmission mechanisms, and there are two movable plates 6. The lower parts of the two movable plates 6 pass through the top wall of the transmission cavity 10 and are respectively connected with the two sets of transmission mechanisms. Each is provided with a clamping claw 8, and the clamping claw 8 includes several adjustable clamping plates.

Both sets of transmission mechanisms include a gear 3 , a rack 2 is arranged in the transmission cavity 10 , the two gears 3 are meshed with the rack 2 , and the central axes of the two gears 3 are respectively rotated and arranged on the two movable plates 6 . A telescopic cylinder 4 is connected to the central shafts of the two gears 3. A fixing plate 11 is provided outside the side wall of the processing table 1. The side of the fixing plate 11 is "L" shaped, and the top of the fixing plate 11 is fixed on the processing table 1. The telescopic cylinder 4 is fixed on the side wall of the fixed plate 11 facing the processing table 1, and the head end of the telescopic cylinder 4 is movably penetrated into the transmission cavity 10 and connected to the movable plate 6, and the transmission cavity 10 has a limited fixed inside. Both ends of the limit rod 5 are fixed on the inner wall of the transmission cavity 10 , and the limit rod 5 moves through the two movable plates 6 .

The clamping claw 8 includes at least five adjustable clamping plates, two adjacent adjustable clamping plates are hinged, and a hinge block is hinged on the opposite surface of the adjustable clamping plate and the movable plate 6, so the The movable plate 6 is screwed with a number of clamping bolts 7, the screw ends of the two outermost clamping bolts 7 are rotated and arranged on the hinge blocks of the outermost two clamping plates, and the other clamping bolts 7 are rotated. The alternating rotation of the ends of the screw rods is arranged on the hinge block of the inner clamping plate. A buffer spring 9 is connected between the clamping plate and the movable plate 6 .

When the utility model is in use, since the two gears 3 are meshed with the racks 2 respectively, the positions of the two movable plates 6 can be adjusted arbitrarily, and the processing position will not be restricted by the clamp. When clamping the irregular-shaped workpiece, place the workpiece between the two clamping claws 8, and then tighten the clamping bolts 7 correspondingly to clamp the workpiece to ensure the machining accuracy.

The present utility model has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present utility model is not limited by the above-mentioned methods, as long as various improvements made by the method concept and technical solutions of the present utility model are adopted, or the Those applied to other occasions are all within the protection scope of the present invention.

Claims (3)

1. The utility model provides a clamping device is used in processing of irregular work piece, its characterized in that, includes processing platform (1), fly leaf (6) and clamping jaw (8), be equipped with transmission chamber (10) in processing platform (1), be equipped with two sets of drive mechanism in transmission chamber (10), fly leaf (6) are total two, and the roof of transmission chamber (10) is passed to the lower part of two fly leaves (6) and links to each other with two sets of drive mechanism respectively, all is equipped with one clamping jaw (8) on the relative face in two fly leaf (6) upper portions, and clamping jaw (8) include a plurality of adjustable clamping plate.

2. The clamping device for processing the irregular workpiece according to claim 1, wherein two groups of transmission mechanisms comprise a gear (3), a rack (2) is arranged in the transmission cavity (10), the two gears (3) are meshed with the rack (2), central shafts of the two gears (3) are respectively and rotatably arranged at the lower parts of the two movable plates (6), the central shafts of the two gears (3) are respectively connected with a telescopic cylinder (4), a fixed plate (11) is arranged outside the side wall of the processing table (1), the side surface of the fixed plate (11) is L-shaped, the top end of the fixed plate (11) is fixed on the side wall of the processing table (1), the telescopic cylinder (4) is fixed on the side wall of the fixed plate (11) facing the processing table (1), the head end of the telescopic cylinder (4) movably penetrates into the transmission cavity (10) and is connected with the movable plates (6), a limiting rod (5) is fixed in the transmission cavity (10), both ends of the limiting rod (5) are fixed on the inner wall of the transmission cavity (10), and the limiting rod (5) movably penetrates through the two movable plates (6).

3. The clamping device for machining the irregular workpiece, as recited in claim 1, characterized in that the clamping jaws (8) comprise at least five adjustable clamping plates, two adjacent adjustable clamping plates are hinged, a hinged block is hinged on the surface of each adjustable clamping plate opposite to the movable plate (6), a plurality of clamping bolts (7) are arranged on the movable plate (6) in a rotating manner, the tail ends of the screws of the two outermost clamping bolts (7) are rotatably arranged on the hinged blocks of the two outermost clamping plates, the tail ends of the screws of the other clamping bolts (7) are rotatably arranged on the hinged blocks of the inner clamping plates at intervals, a buffer spring (9) is connected between each clamping plate and the movable plate (6), and the tail ends of the screws of the clamping bolts (7) are obliquely arranged towards the middle of the clamping jaws (8).

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